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| Patents for George F. Hagner | |||||
| Number | Date | Patentee | Title | Type | |
| 2,859X | Oct. 13, 1817 | G.F. Hagner | Improvement in manufacturing verdegris | ||
| 2,860X | Oct. 13, 1817 | G.F. Hagner | Improvement in manufacturing white lead | manufacturing potash | |